How many free surfaces do solids, liquids and gases have and why?
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Answered by
192
A solid consist of very rigid and layered structure which allows solid to have number of free surfaces. Since solid consist of infinite number of atom and layers in particular arrangement therefore it contain infinite number of free surface.
Liquid contain only one free surface because force of attraction is less between the atom which do not allow it have more than one free surface. For example liquid occupy the shape of container in which it is poured.
Gases do not have free surface due to very less force of attraction between the molecules and the disperse nature of gas molecules do not allow the gases to have free surface.
For example- The gas molecules are equally distributed within the balloon without the formation of surface.
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Liquid contain only one free surface because force of attraction is less between the atom which do not allow it have more than one free surface. For example liquid occupy the shape of container in which it is poured.
Gases do not have free surface due to very less force of attraction between the molecules and the disperse nature of gas molecules do not allow the gases to have free surface.
For example- The gas molecules are equally distributed within the balloon without the formation of surface.
hope it helps!!❤❤❤❤
keep always smiling☺☺
Answered by
51
HEY .
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To give a general definition of the term "free surface" with reference to a solid, liquid or gas one can say that it is the surface where the superficial tension phenomena take place.
The superficial tension is the force that builds up on the interface layer (first layer of molecules at a certain interface, e.g first layer of water molecules at the interface air-water) that compress to huge pressures the phase that it surrounds.
Since gases do not exhibit superficial tension phenomena (they have no defined shape or volume) they can not form on their own a free surface. Instead they exhibit a free surface when in contact with liquids.
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To give a general definition of the term "free surface" with reference to a solid, liquid or gas one can say that it is the surface where the superficial tension phenomena take place.
The superficial tension is the force that builds up on the interface layer (first layer of molecules at a certain interface, e.g first layer of water molecules at the interface air-water) that compress to huge pressures the phase that it surrounds.
Since gases do not exhibit superficial tension phenomena (they have no defined shape or volume) they can not form on their own a free surface. Instead they exhibit a free surface when in contact with liquids.
FOLLOW ME.
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